Cop-winding machine



Aug. 31 1926. 1,598,262

F. AsHwoRTH COP NI-NDI NG MACHI NE Filed Dec. 24, 1925 2 sheets-sheet 2Ravera/2501 /M Www@ Patented Aug. 31, 192.64.

UNlTED STTES PATE F F l C E..

FRED ASIIVORTH, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA-CHINERY CORPORATlON, OF PATTERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

COP-WJENDING MACHINE.

Application filed. December 24, 1925. Serial No. 77,438.

The present invention relates to cop winding machines and is hereinshown as embodied in a machine for winding flat disk shaped cops ofwaxed thread for use in discoidal sewing machine shuttles.

The invention has been designed primarily as an improvementin copwinding machines of the type which comprise winding flanges betweenwhich the cop is wound, a winding shaft upon which the cop is woundarranged concentric with the winding iianges, a driving shaft inalignment with the winding shaft, and means for moving the winding shaftinto winding position between the flanges and away from winding positionso as to permit the completed cop te be removed from the machine. Theobject of the invention is to provide improved means for heating thevarious parts of the machine with which the wax thread comes incontactand to provide means by which the completed cop may be morequickly and easily removed from the machine with less danger ofdeformation or other injury. Tit-h these objects in view, the inventionconsists in the constructions, combinations and arrangements of partshereinafter described Y and claimed.

In the accompanying' drawings Fig. 1 is a front elevation of a copwinding machine embodying the several features of the present invention;Fig. 2 is a side elevation of the machine; Fig. 3 is a front elevationpartly in section of the winding instrumentalities; Fig. 4 is a sectionon line 4-4 of Fig. 3; Fig. 5 is a plan view of the parts shown in Fig.3; and Fig. 6 is a perspective view of the completed cop. A

The cop winding machine illustrated in the drawings comprises a frame 8which carries a wax pot 10 and winding instrumentalities7 indicatedgenerally at 12, to which the. thread comes from the wax pot over atension wheel 14 of the usual form, which is mounted on a bracket 16adjustable on a post 18 secured to the machine frame.

The winding instrumentalities, as shown in Fig. 3, comprise two windingiianges 20 and 22 between which the cop is wound, and a winding shaft 24concentric with the flanges. The flange20 is formed integrally en adriving shaft 26 journaled in bearings 28 and 30 in axial alignment withthe winding shaft and driven by a pulley 32 from a treadle controlledsource of power of any usual or preferred form. The tia-nge 22 has a hub33 ournaled in a bearing 34 and is restrained from axial movement by aset screw 36 engaging in an annular groove 88 of the hub. The windingshaft 24 is splined to the hub 33 in order to permit relativelongitudinal movement, and for the purpose of .performing the windingoperation is provided with a tongue 40 adapted to engage a slot 42 ofthe driving flange. The tongue 40 is provided with a slot or groove 44to receive the end of the thread and hold it during the windingoperation. When the cop is completed the thread is cut and the windingshaft 24 is withdrawn from between the flanges by means of a manuallyoperated bell crank 4S pivoted to the machine frame and having a yoke 48engaging a collar 50 on the reduced outer end 52 of the winding shaft.The bell crank is provided with a stop member 54 which engages a detent56 to held the shaft in proper position during the winding operation andwhichis provided with a projection 58 adapted to engage the lower sideof the detent to limit the outward movement of the winding shaft when itis withdrawn from withinthe cop.

To facilitate the removal of the flat disklike cop from between thewinding flanges and avoid deformation and injury of the cop, a knock-offlever 60 is provided having a cop engaging surface 62 which extendsbetween the winding flanges and which is curved to embrace the completedcop. T his lever is pivotally mounted on the machine frame and isprovided with a handle eitending within convenient reach of theoperator. The lever is provided with a counterweight 64 which normallyholds the lever in the position shown in Fig. 4 in which the surface 62is out of engagement with the cop. A downward movement of the handleportion of the lever causes the surface 62 to engage the cop and removeitfrom between the winding flanges while exerting pressure on asubstantial portion of its periphery. During its removal therefore, thecoils of thread of which the cop is composed are maintained in place bythe winding flanges and by the knock-oftl lever so that each cop as itis delivered is of uniform size and sha-pe substantially as indicated inFig. 6 of the drawings.

The wax pot is heated by an electrical heating unit 6 6 connected by anarmored llt) ,ber when in inoperative .conductors 72.

Leganes vpower supply. Provision is also made for heating the windinginstrumentalities and the tension wheel with which the thread comes incontact in order to prevent Aadhesion of the thread to any of theseparts. The completed cop is merely a mass of thread, the-.turns beingheld together merely by the adhesion of the wax, and accordingly theparts of the machine which contact with the `cop during the winding andremoval operations are-thoroughly heated in order that removalmay bereadily effected without deforming the cop. For this purpose thewindinginstrumentalities are 'heated by an electrical heating unit T'-which is enclosed in avblock Z6 secured between the bearings 28 andso-as to conduct-"heat from the heating nnitto the bearings and Ythenceto the winding flanges and the winding shaft. The cop engaging portionof the` knock-off memposition rests against the block 76 so as also tobe conductively heated therefrom, thus eliminating the danger of the copsticking to this part when lthe cop is removed from the machine. Theunit is energized by conductors 78 connecting with the supply conductors7:2. The lbraeket 1G, upon which the tension wheel le is mounted, isalso provided with a heating unit indicatedat 80 which .serves to heatthe bracket and by conduction to heat the tension wheel so as to preventsticking of .the-'thread to the Wheel as it passes thereover. The unitSO is energized by conductors 82 also connecting with the supply Thecnrrentito all the heating units is controlled by a snap switch 82 Vofthe usual forni, and a lamp Se is provided which gives a visibleindication when the current is turned on.

The invention having been described, what is claimed is:

l. A cop winding machine having, in combination, two winding flangesbetween which .the cop is wound, a driving shaft concentric with theflanges, a winding shaft in aerial alignment with the driving shaft andlongitudinally movable from winding position between the flanges to aposition permitting discharge of the cop, and a knock-off lever arrangedtovbe moved transversely between the winding flanges for discharging thecop.

2. A cop winding machine having, in combination, two winding flangesbetween which the con wound, a driving shaft concentric with theflanges, a winding shaft in axial alignment with the driving shaft andlongitndin ally movable from winding position between the flanges to aposition permittingi` discharge of the cop, a knock-oft' lever arrangedtobe moved transversely between the winding' flanges for dischargingtheCop, and means for heating the knock-off lever.

3. A cop winding machine having, in combination two winding flangesbetween which the cop is wound, a driving shaft concentric with theflanges, a winding shaft in axial alignment with the driving shaft,bearings in which said shafts are mounted and in one of Vwhich ythewinding shaft is longitudinally movable from winding position betweenthe iianges to a position permitting discharge of' the cop, a'knock-of'lever arranged to be moved transversely between the winding flanges fordischarging the cop, and an elec*- trically heated block connected withthe bearings and normally engaging the knock-off lever for condnctivelyheating the parts which contact with the cop.

it. A cop winding machine h a ving, in combination, two winding flangesbetween which the cop is wound, a driving` shaft concentric with theflanges, a winding shaftin axial alignment with the driving shaft,bearings in which said shafts are mounted and in one of which thewinding shaft is longitudinally movable from winding position betweenthe flanges to a position permitting discharge of the cop, and anelectrically heated block engaging the bearings andthrough the bearingsheating the winding shaft and flanges.

A copwinding machine having, in combination, a wax pot, winding flangesbetween which the cop is wound, a driving shaft concentric with theflanges, a winding shaftin axial alignment with the driving` shaft`bearings in which said shafts are mounted and in one of which thewindingshaft is longitudinally movable from winding position hetwcen theflanges to a position permitting discharge of the cop, a tension wheelover which the thread passes from the wax pot to the winding shaft, anelectrically heated bracket in which the tension wheel is mounted, andan electrically heated block engaging said bearings and through thebearings heating the winding shaft and flanges. i

n'tcstimony whereof l have` signed my name to this specification.

FRED ASHW'ORTH.

